gen Chem page 8

Question 1

moles of electrons transferred during reduction

Answer 1

M^n+ + n e- –> M solid

Question 2

1 F=

Answer 2

96000 C or J/V

Question 3

electrodeposition equation

Answer 3

mol of metal =It/nF
I is current t is time
“calculating the moles of a metal is not fun”

Question 4

standard emf of cell

Answer 4

E cell = E red, cathode- E red, anode (don’t use coeff)

Question 5

standard change in free energy from standard emf

Answer 5

delta G= -nFEcell

unit is J because F in J so be careful

Question 6

nernst equation

Answer 6

E of cell non standard= E cell std - (RT/nF)(ln Q)

Question 7

nernst simple

Answer 7

E cell nonstandard= E cell std - 0.06/n log Q

at 298 K

Question 8

reaction quotient Q

Answer 8

Q= [C]^c [D]^d / [A]^a [B]^b

Question 9

standard change in free energy from keq

Answer 9

delta G= -RT ln Keq

Question 10

free energy change nonstandard

Answer 10

delta G= delta G std + RT ln Q

Question 11

the more positive E red,

Answer 11

the more likely to be reduced

Question 12

peroxide

Answer 12

H2O2

and O has an ox number of -1

Question 13

LEO GER

Answer 13

and Red cat AnOx

Question 14

electron flow

Answer 14

A to C

Question 15

current flow

Answer 15

C to A

Question 16

galvanic cell

Answer 16

cathode is + and anode is -
spontaneous -G
+ emf
the more + Ered is the cathode

Question 17

electrolytic cell

Answer 17

cathode is - and anode is +
not spontaneous (outside source) + G
-emf
the more + Ered is the anode

Question 18

cations attracted to the

Answer 18

cathode

Question 19

anions attracted to the

Answer 19

anode

Question 20

concentration cell

Answer 20

galvanic cell where electrons flow to the more concentrated side where they react

Question 21

lead acid battery

Answer 21

low energy density

Question 22

Ni Cd replaced by

Answer 22

Ni Hydride battery